Electric kettle



FIG. 1 is a side elevational view of an electric kettle showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a side elevational view thereof showing the opposite side than that shown in FIG. 1; and

FIG. 6 is a bottom plan view thereof. 

The ornamental design for an electric kettle, as shown and described. 